Denali National Park and Preserve (AK) Temperature by Month

The average annual maximum temperature in Denali National Park and Preserve, Alaska, United States of America is -4°C (25°F), with daytime highs ranging from -13°C (9°F) in January to 8°C (46°F) in July. This page covers monthly averages, day-night differences, and how Denali National Park and Preserve compares to cities worldwide.

The weather in Denali National Park and Preserve experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 2°C (36°F) in July to -19°C (-2°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Denali National Park and Preserve by month:

The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest.

The chart below shows the average temperature throughout the year:

Denali National Park and Preserve's average annual maximum temperature is -4°C (25°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.

New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.

Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate, hot dry summers and mild wet winters.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Denali National Park and Preserve this rarely lasts long on the ground.

For more on Denali National Park and Preserve's weather, including monthly rainfall, sunshine hours, and humidity, visit our Denali National Park and Preserve climate page.